Home / 9,987.42-14,965.73-4,915.79

Finding the Fourth Proportional to 9,987.42, 14,965.73 and 4,915.79

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Solution

The fourth proportional to 9,987.42, 14,965.73 and 4,915.79 is: 7,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.42 : 14,965.73 = 4,915.79 : x
  2. Step 2: Convert to fraction form
    9,987.42/14,965.73 = 4,915.79/x
  3. Step 3: Cross multiply
    9,987.42x = 14,965.73 × 4,915.79
  4. Step 4: Simplify right side
    9,987.42x = 73,568,385.88
  5. Step 5: Solve for x
    x = 73,568,385.88/9,987.42
  6. Step 6: Final answer
    x = 7,366.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.